Draw-bar and yoke.



, G. c. MURRAY.

DRAM/BAR AND vorm i APPLICATION FILED IAN. '2o. 1912. 1

' Patented Mar. 14, 1916.

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G. c. MURRAY.

DRAW BAR AND YOKE. APPL'xcAnoN HLED JANazo. 1912.

Patented Mar. 14, '1916.

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j if HI nam"nnmwymmmlglr R. c. MURRAY. DRAW 'RAR AND. vom. PPLICATION Y FILEIJ VJAN. 20. 19'12- v7. Mm., fr... /U R Mm mm m i i Q w,

GEORGE C. MURRAY, OF CHICAGO, ILLINOIS.

IiRAW-BAR AND YoKs.

To all whom may concern Be it known that I. Groen C. MURRAY, a citizen of the United States, residing at Chicagoin the county of Cookvandv State of lllinois,`have inventedeertain new and useful Improvements in Draw-Bars and Yokes, of which the following is a specification.

The object of my invention is to provide an improved draft rigging yoke of the generaly type villustratedy in my Patent No. 1,000,932, August i5. iaii.

The particular objects and nature of myiiivention 'will more clearly appear from the following description and claims. taken in connection with l'the accompanying drawings. in which- Figure-1 is a plan View of a draft rigging embodying my invention. Fig. 2 is an elevation of the structure shown in Fig. 1. Fig. 3 is a transverse section on the line 3 of Fig. 1. Fig. L1 is an end View of the inner end of the yoke. Fig. 5 is a View of the inside of the upper yoke member. Fig. 6 is aview of the inside of the lower yoke member. Fig. 7 is a fragmentary view in section; showing the hinged ends of the yoke member. Fig. 8 is a fragmentary perspective view of the outer end'of the lower yoke member.v Fig. 9 is a plan view of another embodiment rof mv invention. Fig. 10 is an elevationwiew of the structure shown in Fig. 9.

The purpose of a draft rigging yoke of the general form described herein is set forth in my patent above referred to. In the particular embodiment of my invention illustrated the yoke comprises an upper member 1 and a lower meinhe j '2, provided at their inner ends with eyelets 8-4 through which a hinge pin or pintle 5 extends. At its outer end the upper yoke member 1l is provided with depending ears 6 between which the di'aw-bar7 is received. The lower yoke member 2 is provided with depending earsS which lie inside of the depending ears G of the upper yoke member, and the ears S are provided at their lower edges with out-` ward Vproiections 9 turned up at ln. to

' forin-aiwhors-for lthe lower edges of the ears and tl'icrebyprevent the ears 6 from sp readi n 0*.

lt is one of the pui-poses of iny present invention to make the coi'istruction compact, thus takingup less of the space between the draft sills, and this object is accomplished by having the upon` the lower yoke Specification of Letters Patent.

1 Patented Mai'. 14,1916.

Application filed January 20,1912. .Serial No. 672,408.

member project downwardly therefrom; in-,-

side of the ears upon the upper yoke mein-wf f ber. lin this form of construction. it is n ecn.

essary. to provide between the draft sills only for the thickness of the ears uponthe upper yoke member. and owing tothe con-f siderahle length of the ears. 6 l providethe anchor seats 9-l0 to prevent said earsfroni.

spreading, although lthis particular feature of the construction may not in all cases be necessary or may he accomplished by otherr specific ar angcment falling within the scope of my invention.

1n order tosecure the yoke to the drawtering key openings in the ears G and inthe k'7o l bar 7, which is of a form now in use, I pro` vide a key 11 which passesthrough regis draw-hai.- 7 and in order to hold the upper.

and lower yoke `members together and in enl@agement with the, draw-bar, as shown in Fig. 2. provide a' key 12- which-passes through registering key openings in theears G and S. The upper and lower yoke meml bers are provided, according to the usual practice. with inturned outer ends 123 which engage the shoulders 14 upon the draw-bar. i.

sie i l have also shown lugs 15 upon the draw-.f

bar between which lugs and the shoulders 14 the inturned ends of the yoke are re ceived. The shoulders 15, however, are not essential in the structure shown in Figs. l and 2 but are desirable in the form of the device shown in Figs. 9 and 10. In. the construction described draft stresses are transmitted from the drawdiar 7 to the yoke through the key 1l and through the lugs 14'.

The key 11 passes through elongated` slots 1G in the draft sills and at its outer end rcccivcs cotter pins 17 passing through aper-V tures i8. The cotter pins 17 serve to hold the key 11 against displacement, andv by` placingthe cotter pinsupon the outer sides of the draft sills they are in aposition which renders assemblage of the device and taking it apart convenient.

ln order to prevent displacement of the hinge piiitle 5 l provide apertures 18 in the: eyelet upon one of the. yoke members. in this case the upper yoke member, and provide-a tering aperture 1S) through the piiitle 5. il cotter piii 2O is inserted through the apertures in the eyclct, 4 and inthe hinge pin and serves to hold the hingil pin in place..

llt will be noted that the lower yokeinembeiI 2 is cut away at 2l between the eyelet i 3 for the purpose of affording clearance for the lower end of the Cotter pin 20. By

placing the cotter pin in the vposition del to have the ends of' is provided with the lug-s 3l and shouiders 32, and the lugs 33 and 34 upon the upper sind lower yoke members engage the recess between the lugs 8l and shoulders 32 on the drew-bar. A key 35 passes-through 'the depending-ears upon the upper and lower yoke members as in the construction above de scribed and serves to hold the upper and` lower .yoke members together with their lugs 33 und 34C in engagement with Mthe reeess in the draw-bar. In this construction upon bufiing movements the yoke is carried back with the draw-bar by the lugs 3l and pulling strains .are transmitted to the yoke through' the engagement of the shoulder 32 upon the draw-bar with the lugs 33, 34: upon the yoke.`

yI cfaim:

l. n a device of the drawebar, 'a yoke comprising an upper and e lower member connected together at their ling inturned outer lclass described, a,

, mesme 'inner ends, said upper yoke member having ears depending at its outer end et the sides of seid drawbar, said loweryoke member having depending eers lyinginside of the ears upon the upper yoke member, the ears" upon thelower yoke member being turned i outwardly and upwardly at their iower ends to engage thev outer sides of the ears upon the upper yoke members.

In e device of the class described, a draw- Aber having shoulders adjacent its inner end and lugs adjacent said shoulders, a yoke comprising upper and lower members connected together at their inner endsand havends engaging the drawbar between vthe said 'lugs and shoulders thereon, said upper yoke member having dem pendingears betiif'eenwhich the dranhbar is received, said lower yokemember having depending eers lying inside of the ears upon the upper yoke member, a key engaging reg# istering apertures in seid eers, and a second key engaging registering apertures in said draw-br and in the ears depending from said'upper yoke member.

In testimony whereof, I have subscribed v .lmy name.

Geenen c. Muieiuirf` Viitnesses: l

` @HENRY A.' Penne,

` EDY'ri-in M. ,einnnnson-u 

